NEZPERCE SEWER REUSE SYSTEM
SUSTAINABILITY
Sarah Cordier, Kenneth Madsen, Nathyn Maller, Luke Rutherford Sponsored By: J-U-B ENGINEERS & Braxton Klas, EIT Special thanks to: Erik R. Coats, P.E., Ph.D. & Richard J. Nielson, P.E., Ph.D. DR. R. N.
OBJECTIVE
LIFT STATION 1
SITE LAYOUT
• City of Nezperce • Previously Discharged Into Long Hollow Creek • Designed Sewer Reuse System to Comply with Regulations • Now Utilizes Effluent as Irrigation
STORAGE POND
• Ties into Existing 10-inch Effluent Pipe • Average Influent Flow: 70 gpm • Pumped Flow Rate: 200 gpm • Total Dynamic Head: 50 ft • 6-inch Ductile Iron Discharge Pipe
LIFT STATION 2
Pond Dimensions • Pond Volume: 4122000 ft • Length: 1000 ft • Width: 670 ft • Side Slopes 4:1 • Berm: 2:1 slopes, 3 ft flat top Gravel Roads • 8-inch Think Gravel • Length 3,500 ft • Volume of Gravel: 1,300 yd
IRRIGATION
• Area: 70.4 acres • Depth: 1.85 ft/year • Utilizes Effluent Phosphorus and Nitrogen Concentration
COST ESTIMATE
• Gravity Fed Inflow From Storage Pond • Pumped Flow Rate: 188-2273 gpm • Total Dynamic Head: 60.6-131 ft • 12-inch Ductile Iron Discharge Pipe • Sprinkler Flow Rate: 11 gpm
2023 CAPSTONE PROJECT